Re: [lwip-devel] lwip_recvfrom(sock == 0)

[Gisle Vanem]

goldsimon@gmx.de wrote:

> > Now the MicroPython test hangs forever. Nothing happens
> > with this socket 0. It's unconnected, so how could this socket
> > ever receive a single byte?
>
> It should indeed not wait here, but return an error. Would you mind
> adding a bug in our savannah bugtracker to ensure this does not get
> forgotten?

Done at:
  https://savannah.nongnu.org/bugs/index.php?59182

> > Could it be some of my 'LWIP_x' options are messed up?
>
> Hmm, while this could change with options, it still should not behave
> like you saw.
Adding a:
  #define LWIP_SOCKET_OFFSET 100

for a socket fd to start at 100, did not help.
But it looks better than a socket 0. IMHO lwip_socket()
returning 0 is highly confusing.

--
--gv